Molding-machine.



Patented Aug. 5, I902.

J. R. THOMAS. MOLDING MACHINE.

I (Application filed May 29. 1901.)

5 Sheets-Sheet I.

(No Model.)

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Patented Aug. 5, I902.

J. R. THOMAS.

MOLDING MACHINE.

[Application filed May 29, 1901.)

5 Sheets-Sheet 2.

(No Model.)

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Patented Aug. 5, I902.

. J. B. THOMAS.

MOLDING MACHINE.

. {Application filqi my 29. 1901.) (No Model.) 5 Sheets-8heet 3.

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5 ShaetsSheet 4.

Patented Aug. 5, I902.

J. R. THOMAS.

MOLDING MACHINE.

[Application filed May 29, 1901.:

Ill! 5 HIM.

(No Model.)

Patented Aug. 5, I902.

No. 706,I30.

J. R. THOMAS.

MOLDING MACHINE.

(Applicatinn filed May 29, 1901.3

5 Sheets-Sheet 5.

(No Model.)

U ITED STATES PATENT ()FFICE.

JOHN R. THOMAS,

OF CINCINNATI, OHIO, ASSIGNOR TO J. A. FAY & EGAN MOLDING- MACHINE.-

SPEGIFICATION forming part of Letters Patent No. 706,130, dated August5, 1902. Application filed May 29, 1901- $erial No. 62,413. (No model.)

To all whom it may concern:

Be it known that I, JOHN R. THOMAS, a citizen of the United States,residing at Cincinnati, in the county of Hamilton and State of Ohio,have invented certain new and useful Improvementsin Molding-Machines, ofwhich the following is a specification.

My invention relates to molding-machines of the characterin whichpreferably'the four :0 sides of stock are planed to suitable configuration at one passage of the same through the machine and which areadapted to provide one or more faces of the stock with a wide range ofdepth of cut for producing stocks having wide differences inconfigurations of surface.

It relates especially to that type of molding machines of the characterdescribed known as outside molding-machines.

In outside molding-machines t. e., molding-machines in which thestock-supporting bed or table frame is located to the outside of themain frame of the machine-it has been the practice to extend the mainframe at the feed-in end of the machine in order to journal acounter-shaft in its extreme feed-in end, the pulleys of whichcounter-shaft serve the purpose of turning the various cutterheads andthe feed by means of belts passing 0 from the counter-shaf t to thecutter-head and feed-shaft pulleys. Mounting the countershaft at theextreme feed-in end of a machine of this character has resulted invarious disadvantages, namely: first, the counter-shaft and theextending frame are in the way of the operator, who in feeding stockinto the machine and stand in about the position occupied by thecountershaft; second, in interference between belts from thecounter-shaft to the cutter-head spindles (especially those of the sidecutter-head spindles) and the frame or other parts of the machine, itbeing understood that provision must be made for adjustment sidewise,especially of the outside cutter-head and consequent range of clearancefor its belt; third, consequent difficulty in designing and constructinga machine of this character, resulting often in inability to provide theproper braces or requisite amount of metal in machine parts to obtainthe desired especially short stock should substantial construction,and,-fourth, consequent limitation in position for the operative partsof a machine of this character. By

- means of my improved device I obviate these difficulties anddisadvantages and provide a machine of the character described in whichI am enabled to accurately counterbalance the inner frame upon itsslideways, so as to prevent undue binding and provide easy manipulationof the parts and accurate adjustment, which latter is a prerequisite todoing accurate work.

Myinvention consists, therefore, in providing a machine of the characterdescribed with a counter-shaft at its-feed-ou't end and in theconnections between the counter-shaft frame and the machine-frame;further, in providing the outer secondary frame of a machine of thischaracter with a lower cutter-head cutting in advance, and therebyproviding the lower side of the stock arranged to travel on the table ofthe machine in the operation of the subsequent cutters upon the stockwith a regular under surface by which the stock may be gaged in itssubsequent operations, and also permitting the more accuratecounterbalancing of the outer secondary frame upon its slideways;further, in providing a supplemental frame for the outer secondary framefor forminga feed-table in front of the lower cutter-head with means foradjusting this feeding-in table up and down for different thicknesses ofcut and to permit so-called profile cutting, in which the lower headswings long knives for making deep cuts in parts of the under side ofstock.

My invention consists, further, in the parts and in the construction,arrangement, and combinations of parts hereinafter more fully 0described and claimed.

I have also herein shown and described improved means whereby thevarious cutterheads may be readily exposed for replacing, adjustment,sharpening, or other operations 5 of their knives and for exposing theadjacent parts for manipulation thereof, but have made the same thesubject of divisional applications hereof, in which the same are morefully shown, described, and claimed, the subject-matter relating to thepressure-bar over the lower cutter-head and adjacent parts he ingembraced in divisional application Serial No. 87,020, the subject-matterrelating to the chip-breaker for the upper cutter-head and adjacentparts being embraced in divisional application Serial No. 87,022, andthe subject-matter relating to the holddown device between the sideheads and adjacent parts being embraced in divisional application SerialNo. 87,02l, all executed under date of December 14, 1901.

In the drawings, Figure 1 represents a side elevationof my improveddevice. Fig. 2 is a plan view of the same. Fig. 3 is a skeleton planview representing the connection between the main and outer secondaryframes. Fig. 4 is a transverse section taken on the line m of Fig. 1.Fig. 5 is adetail of screwshaftfor adjusting the outer secondary frame.Fig. 6 is a plan View of the pressure device for the lower cutter-head.Fig. 7 is a side elevation of the same, partly in section. Fig. 8 is aview in perspective of the saddle for the lower cutter-head yoke. Fig. 9is-a view in side elevation showing the chip-breaker for the uppercutter-head in raised position. Fig. 10 is a detail in side elevation ofthe swinging frame for the same. Fig. 11 is a detail in side elevation,partly in section, of the chip-breaker with its weighting arrangement.Fig. 12 is a view in side elevation of the holddown device between theside cutterheads. Fig. 13 is a detail of a slide for the same. Fig. 14is an enlarged plan view of the outside side cutter-head slide with theparts mounted thereon. Fig. 15 is a side elevation of the same with thelower part of the cutter-head, saddle,and spindle broken away; and Fig.16 is an end viewof the slide and side gage mounted thereon.

A represents the main frame, in which an outer secondary frame B ismounted so as to be adjustable up and down on ways 1 2, the adjustmentbeing accomplished by means of a screw-shaft 3, taking through andturning in an interiorly-threaded lug 4, secured to the bottom of theframe and at its upper end having a step 5and a journal extension 6, thelatter taking into an opening 7 in a lug 8 at the bottom of the outersecondary frame, the lug being also provided with a pocket 9, in which asteel washer 10 and balls 11 may be placed, the latter resting on thestep 5. The screw-shaft 3 also carries a bevel-gear 12, meshing withsimilar bevel-gear 13 on the shaft 14, supporting a hand-wheel 15 forturning the screw-shaft 3, and thereby raising and lowering the outersecondary frame with relation to the frame proper. The outer ways 2 maybe on a bracket 16, extending from the frame of the machine. A slot 17is in the bracket, with a bolt extending from the outer secondary framethrough the slot, with a nut 19 at its outer end for rigidly sccuringthe outer secondary frame in position afteradjustment.

I mount the lower cutter-head O in bearl ings 20 on a yoke 21, which ispermitted to be slid longitudinally on ways 22 on a saddle 23, havingposts 24 taking into sockets 25. sockets 25 have caps 26 at theirbottom. Adj usting-screws 27 are collared to the caps and take intointernally-threaded apertures in the posts for giving verticaladjustment to the saddle and cutter-head. An adjusting-bolt 28 isprovided for limiting the inward movement of the yoke and a set-bolt 29for securing the yoke in position. A grip 30 is provided for the yoke,by which the yoke is adapted to be gripped when sliding the samelongitudinally. The object of thus sliding the yoke and cutter-headlongitudinally is to expose the cutter-head or remove the same entirelyfrom the machine.

I provide the ways 1 and 2 and the screwshaft 3 in substantially themiddle in weight longitudinally of the outer secondary frame, so thatthe feeding-in end and the feedingout end may be substantiallycounterbalanced by each other. To aid me in doing this and also for thepurposes hereinafterexplained, I mount the lower cutter-head C inadvance of the other cutter-heads to take the weight from thefeeding-out end and transfer it to the feeding-in end of the outersecondary frame. I also provide the feeding-in end of the outersecondary frame with a supplemental frame D, the upper surface of whichforms a feeding-in table 36 in advance of the lower cutter-head C, witha lip 37 adjustable on the supplemental frame to and from the lowercutter-head by means of bolts 38, taking through slots 39 in the lip andinto the supplemental frame. Mounting the lower cutter-head at thefeed-in end of the table in a machine of this character permits theunder side of the stock to be cut in advance to provide it with aregular under surface for acting as a gage in the subsequent cuttingoperations. Giving the feeding-in table in advance of the lowercutter-head a wide range of adjustment by mounting the same on an adjustable frame adjustable from theouter secondary frame permits so-calledprofile cutting in convenient manner. In profile cuttinglarge and deepcuts are taken from the under side of the stock, making it necessary toprovide a channel or support for the stock on the table proper, 35, of ashape reverse to that ofthe profile cut, and therefore necessitating theraising of the stock above the table proper to allow for the insertionof the support between the stock and table. In order that the stock infront of the lower cutter-head may be properly supported in a horizontalplane corresponding to the horizontal plane of the support, I providethe wide range of adjustment for the supplemental frame in advance ofthe lower cutter-head, so that the feed-in table may be raised, and feedthe stock in the horizontal plane of the support. The supplemental framealso h'as'lower feed-rolls 41 42, journaled in boxes, adjustable bymeans of The I bolts 45 for raising or lowering the feed-rolls withrelationto the table. An upper feedroll 51 has shaft 52 mounted in ayoke 53, swingingly supported on a shaft 54, j ournaled in boxes 55,adjustable on the frame of the machine by means of bolts 56 and held inplace by bolts 57. The bolts 56 are adapted to adjust the upperfeed-roll housing to give proper lead to the feed-rolls. Bolt 58, whoselower end is adapted to take against the frame of the machine, serves tolimit the downward movement of the roll 51. A second upper feed-roll 61has a shaft 62 journaled in a housing 63, swinging upon the shaft 52,the downward limit of which is adjusted by a bolt 64. The feed-rolls aredriven from a shaft 66, having thereon tight and loose pulleys 67receiving motion by means of a belt passing'thereover and over a pulley69 on a shaft 7 O, which latter also supports suitable cone or otherpulley 71, receiving motion from the counter-shaft, hereinafterdescribed. The shaft 66 carries a pinion 76, meshing with a gear 77,mounted in an expansion de vice 78, extending from the shaft 76 totheshaft of a transmitting-gear 80, which meshes with gears 81 82 on theshafts of the lower rolls 41 42. Shaft 66 also carries a pinion at itsrear end below and meshing with a gear 87 on shaft 54, which alsocarries a pinion 88, meshing with a gear 89 on shaft 52, which latteralso carries a gear 90, meshing with a transmitting-gear 91,transmitting motion to a gear 92 on shaft 62. The shaft 66 turns withitsupper face toward the feed-out end of the machine, and the point ofengagement between the gears on the feed-roll shafts and the gearsimmediately meshing therewith is ata greaterdistance from the horizontalplane of the stock passing through the machine than is the axis of theroll, thereby gearing the rolls so that the pressure exerted by thegears will be toward the stock and exert greater power on the stock forfeeding it through the machine and driving the upper feed-rolls down.

The supplemental frame D has guides 101 sliding in ways 102 of the outersecondary frame and is adjustable up and down on the the latter by meansof a screw-shaft 103, collared to a lug 104 and taking into aninternally-threaded aperture of a lug on the supplemental frame, ahand-wheel107 being provided for the screw-shaft.

The cutter heads are designated by the letters C, E, F, and G, and forthe reasons stated I have the lower cutter-head 0 cutting first. H is acounter-shaft journaled in suitable bearings 111, adjustable'in stands112, which may have a connection 113 for forming a counter-shaft yoke.The bearings 111 are adjustable vertically and horizontally. Connectingrods or braces 117 may take through lugs 118 on the machine and lugs 119on the counter-shaft yoke. Adjusting-nu ts 121 are provided for aliningthe counter-shaft with relation to the machine. The lugs 119 may besplit, as shown at 123, for readily receiving the connections 117. Thecutter-head O is mounted on a shaft 131, carrying a pulley 132, beltedfrom a pulley 133 on the counter-shaft. The cutter-head-E is mounted onshaft 135, carrying a pulley 136, belted from'a'pulley 137 on thecounter-shaft.- The cutter-head F is mounted on a shaft 139, whichcarries a pulley 140, belted from a pulley 141 on the counter-shaft.This latter pulley is adjustable sidewise on the counter-shaft tocorrespond to sidewise adjustment that may be made of the hand. Thecutter-head G is mounted on a shaft 143, which carries a pul- 1e ysimilar to pulley 140, belted from a pulley 145 on the counter-shaft.Asuitable cone or other pulley 147 is mounted on the countershaft fortransmitting motion by belt to the pulley 71 for'the feed. Tight andloose pulleys 148 are also mounted on the countershaft, motion beingtransmitted to the same from any suitable source of power.

In practice the side cuttenheads in a machine of this character performthe lightest service, heavier cuts being taken by the upper and lowercutter-heads. In practice it is also desirable to provide longer beltsfor shafts performing heavier duty. In my improved construction,therefore, I provide shorter belts for the cutter-heads performing thelighter service and longer belts for the cutter-heads performing theheavier service by placing the upper'and lower cutter-heads in advanceof the side heads and placing the counter-shaft at the feed-out end ofthe machine, thereby alsoclearing the feed-in end of the machine ofobstruction. Myimproved construction also permits adjustment of thecounter-shaft with relation to the cutter-heads and afiords a means forbracing the countershaft and the frame with relation to each other,forming a substantial construction permitting smooth operation. I amalso enabled by means of my improved construction to' mount the lowercutter-head at the feed-in end of the machine and to provide the outersecondary frame of the machine with an adjustable infeeding-table, as inmy improved construction no belts interfere at the feed-in end of themachine with the desirable placing of the parts and the providing ofsuitable construction therefor.

A shifting-lever 150 is provided for shifting the belt taking about thepulleys 67 68.

To rear of the lower cutter-head the inner frame is provided with thetable 35 and may have a lip 152, adjustable to and from the lowercutter-head by means of bolts 154, taking through slots 153 and into theframe.

K is a pressure device above the'lower cut tor-head. It consists of aswinging frame 171, hinged on a bolt 172, taking throughears 173 on aplate 174, secured to the frame and havin g lugs 175 extendingtherefrom. The swinging frame has a shank 176 and a socket or sockets177. The shank 176 takes and has a snug fitbetween the lugs 175. A link178swings chine.

about a bolt 179 on one of the lugs and has slot180, taking about a bolt181 in the other lug. The link 178 fits snugly above the shank 176 whenthe swinging frame 171 is in depressed or normal position, and the bolts179 and 181, with the link 178, hold the swinging frame securely indepressed position. Each of the sockets 177 has a bore 186 for receivinga shank 187 of a pressure-foot 188. At its upper end the socket has aninternally-threaded bore 191 for receiving a bolt 192. A bolt 193 takesslidably through the bolt 192 and is screwed into the top of thepressure-foot shank 187. A spring 194 is received by a pocket 195 andtakes between the upper face of the pressure-foot shank 187 and thelower face of the bolt 192. The bolt 192 by its adjustment serves toregulate the tension of the spring. Thebolt193byitsadjustmentserves toregulate the downward limit of the pressure-foot 188. Each pressure-foothas an upwardly-inclined face at its lower feedingin end.

L is a chip-breaker device for the upper on tter-head and embraces aswinging frame 201, having a bearing 202, taking about a rod 203,secured in lugs 204 to the frame of the ma- The frame 201 has a planedface 205 for receiving a similar planed end of a chipbreaker support206, bolts 207 taking into the support through slots 208 in the swingingframe 201, and thereby permitting adjustment of the support toward andaway from the cutter-head. At its lower end the support carries apressure bar or foot 211, adjustable thereon to and from the cutter-headby means of having bolts 212 take through slots 213 in the support andscrewing into the pressure-bar. The support carries a rod 215, uponwhich a pressure-lever 216 is adapted to swing. The pressure-lever has adownward extension 218, a rearward extension 219, and a weight 217. Thelever has a bolt 221, secured by set-nut 222 and normally held out ofcontact with the support by a spring 223. A belt 225 limits downwardmovement of the pressure-bar.

M is a holddown device for holding the stock to the bed while beingoperated upon by the top and side cutter-heads after the out of the tophead. It comprises a swinging frame 231, pivoted on a bolt 232, takingthrough lugs 233 on the frame. The swinging frame is preferablybifurcated, as shown at 234, the forks extending to either side of andfitting snugly against an extension 235. A cross-piece 236 is secured tothe extension by means of a hand-wheel and screw 237 and is adapted toturn thereon and take snugly against the swinging frame for holding thelatter rigidly in place when in normal lowered operative position. Theswinging frame has adjustably secured thereto a pair of slides 241, adjustably held in position by means of bolts 242, taking through slots 243in the slides and into the swinging frame. These slides are adjustabletransversely of the bed of the. machine .and at their forward ends carryslides 245, which are'given an up-anddown adjustment by means of bolts246 and held securely in place by set-bolts 247. The slides 245 carryfeet 248, to which blocks 249 are adapted to be secured.

The outer side head F is mounted on a slide 255, having a rearwardextension 256. It also has a forward extension 257, taking about thecutter-head, the inner end of the same being spanned by a plate 258,removably secured to the slide and forward extension by bolts 259. Theslide 255 is adjustable transversely of the bed on guide 260 by means ofa screw-shaft 261, screwing through lug 262 on the slide and collared tothe outer secondary frame, a hand-wheel 264 being attached to thescrew-shaft. The cutter-head F is mounted on a saddle 266, secured tothe slide by means of a bolt 267, on which the saddle may be swung outof vertical position for giving an angling out. The slide also carries achip-breaker 270 for the cutter-head F. The chip-breaker is swinginglysecured to the slide by bolt 271, screwing into any one of holes 272 forbringing the chip-breaker nearer to or farther away from the cutterheadF. A cable 273 is secured to the rear end of the chip-breaker and takesover an idler 274 and carries a weight 275 for giving resistance to thechip-breaker. ward extension also carries a side-gage slide 279,adjustable on the rearward extension on ways 280. A bolt 281 takesagainst the slide 279, and a bolt 276 takes through a slot 277 into therearward extension to limit its outward movement. The side gage proper,278, is mounted on the slide by having a setbolt 284 take through a slot285 in the gage into the slide 279 for setting the gage in adjustedposition to and from the side head on ways 282. In myimprovedconstruction when the hand-wheel 264 is turned the slide 255, togetherwith all the superimposed parts namely, the side head F, thespanning-plate 258, chip-breaker 270, and the side gage 278 are movedsimultaneously while retaining their relative adjusted positions,permitting these adjustments to be accurately retained while makingadjustment sidewise for greater or less width in stock. Thevspanning-plate 258 also provides a support for the stock next to theside cutter-head, and thereby provides a continuous support for thestock. This spanning-plate may also be removed-for instance, to permitthe side cutter-head to be swung to substantial extent with its upperend inwardly for angling cutting.

I claim- 1. In a molding-machine, the combination of a lower cutter-headcutting first, an upper cutter-head cutting next, and side cutterheadscutting thereafter, with a plurality of pairs of feeding-in rolls havingtheir upper rollsdriven down,and a counter-shaft for turn- The rearingthe cutter-heads located at the feed-out end of the machine,substantially as described. 1

2. In a moldingmachine, the combination of a lower cutter-head cuttingfirst, an upper cutter-head cutting next, and side cutterheads cuttingthereafter, with a counter-shaft for turning the cutter-heads located atthe feed-out end of the machine, and an adjustable connection betweenthe counter-shaft and the frame of the machine for alining thecounter-shaft with relation to the frame, substantially as described. I

3. In a molding-machine, the combination of a frame, a lower cutter-headcutting in advance, an upper cutter-head cutting thereafter, and twoside cutter-heads cutting after the lower and upper cutter-heads,with aplurality of pairs of feeding-in rolls having their upper rolls drivendown, and a counter-shaft with a frame therefor at the feed-out end ofthe machine for turning the cutter-heads, a plurality of rods connectingthe frame of the molding machine with the counter shaft frame, withmeans at the rods for adjusting the distance between the frames,substantially as described.

4. In a molding-machine, the combination of' a main frame with an outersecondary frame therefor, a lower cutter-head mounted on the outersecondary frame, with a feedin in table located on the outer secondaryframe in advance of the lower cutter head, and means for adjusting thefeeding-in table with relation to the outer secondary frame, with thelower cutter-head cutting first, an upper cutter-head mounted in theframe cutting thereafter, and side cutter-heads cutting after the uppercutter-head, feeding-in rolls having the upper rolls driven down, and acounter-shaft located at the feeding-out end of the machine for turningthe cutter-heads, substantially as described.

5. In a molding-machine, the combination of a main-frame, an outersecondary frame therefor, a lower cutter-head mounted at'the feeding-inend of the outer secondary frame, with a supplemental frame carrying afeeding-in table, with means between the feedingin table and the outersecondary frame for adjusting the former with relation to-the latter,with feed-roll mounted in the supple-- mental frame, means for'adjustingthe feedroll in the supplemental frame and means for turning thefeed-rollfrom the main frame, upper feed-rolls driven down, an uppercutter-head, and side cutter-heads, with a counter-shaft located at thefeed-out end of the machine for turning the cutter-heads, substantiallyas described.

to the slide between the slide and the forward extension, with aremovable spanner plate secured to the inner edge of the slide andforward extension for supporting the stock when passing the side head,with means for adj usting the slide sidewise and thereby simultaneouslyadjusting the slide, forward extension,

side head and spanner-plate, substantially as described.

8, In a molding-machine, the combination of a main frame, an outersecondary frame therefor, guideway between the main frame and the outersecondary frame, means for adjusting the outer secondary frame up anddown on the main frame, a lower cutter-head mounted at the feed-in endof the outer secondary frame, a supplemental frame carrying a feed-intable in advance of the lower cutter-head mounted on the outer secondaryframe, means for adjusting the supplemental frame and its table up anddown upon the outer secondary frame, with side cutter-heads mounted onthe outer secondary frame at its feed-out end, and a counter-shaft atthe foodout end of the machine for turning the cutter-heads,substantially as described.

9. In a molding-machine, the combination of a frame, a lowercutter-head, an upper cutter-head, and side cutter-heads, with acounter-shaft and frame therefor for turning the cutter-heads located atthe feed-out end of the machine, with a plurality of rods connecting theframe of the molder with the frame of the counter-shaft, with means foradjusting the distance between the frames.

10. In an outside molding machine, the combination of a lowercutterhead, an upper cutter-head, with side cutter heads, and acounter-shaft for operating thecutter-heads located at the feed-out endof the machine for the uses and purposes described.

In testimony whereof I have signed my name hereto in the presence of twosubscribing witnesses.

JOHN R. THOMAS.

l/Vitnesses:

PARKE S. JOHNSON, PHIL TOZZER.

